Intel Core 2 Quad Q8400 vs Qualcomm Snapdragon 778G+
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CPU comparison with benchmarks
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| Intel Core 2 Quad Q8400 | Qualcomm Snapdragon 778G+ | |
CPU comparisonIn this CPU comparison, we compare the Intel Core 2 Quad Q8400 and the Qualcomm Snapdragon 778G+ and use benchmarks to check which processor is faster.
We compare the Intel Core 2 Quad Q8400 4 core processor released in Q2/2009 with the Qualcomm Snapdragon 778G+ which has 8 CPU cores and was introduced in Q4/2021. |
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| Intel Core2 Quad (19) | Family | Qualcomm Snapdragon (102) |
| Intel Core 2 Quad Q8000/Q9000 (16) | CPU group | Qualcomm Snapdragon 778 (2) |
| 2 | Generation | 4 |
| Yorkfield (Penryn) | Architecture | Kryo 670 |
| Desktop / Server | Segment | Mobile |
| -- | Predecessor | -- |
| -- | Successor | -- |
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CPU Cores and Base FrequencyThe Intel Core 2 Quad Q8400 is a 4 core processor with a clock frequency of 2.66 GHz. The processor can compute 4 threads at the same time. The Qualcomm Snapdragon 778G+ clocks with 2.50 GHz, has 8 CPU cores and can calculate 8 threads in parallel. |
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| Intel Core 2 Quad Q8400 | Characteristic | Qualcomm Snapdragon 778G+ |
| 4 | Cores | 8 |
| 4 | Threads | 8 |
| normal | Core architecture | hybrid (Prime / big.LITTLE) |
| No | Hyperthreading | No |
| No | Overclocking ? | No |
| 2.66 GHz | A-Core | 2.50 GHz 1x Kryo 670 Prime |
| -- | B-Core | 2.20 GHz 3x Kryo 670 Gold |
| -- | C-Core | 1.90 GHz 4x Kryo 670 Silver |
Artificial Intelligence and Machine LearningProcessors with the support of artificial intelligence (AI) and machine learning (ML) can process many calculations, especially audio, image and video processing, much faster than classic processors. Algorithms for ML improve their performance the more data they have collected via software. ML tasks can be processed up to 10,000 times faster than with a classic processor. |
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| Intel Core 2 Quad Q8400 | Characteristic | Qualcomm Snapdragon 778G+ |
| -- | AI hardware | Qualcomm AI engine |
| -- | AI specifications | Hexagon 770 @ 12 TOPS |
Internal GraphicsGraphics (iGPU) integrated into the processor not only enable image output without having to rely on a dedicated graphics solution, but can also efficiently accelerate video playback. |
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| no iGPU | GPU | Qualcomm Adreno 642L |
| GPU frequency | -- | |
| -- | GPU (Turbo) | -- |
| -- | GPU Generation | 5 |
| Technology | 6 nm | |
| Max. displays | 1 | |
| -- | Compute units | 4 |
| -- | Shader | 384 |
| No | Hardware Raytracing | No |
| No | Frame Generation | No |
| -- | Max. GPU Memory | 4 GB |
| -- | DirectX Version | 12.0 |
Hardware codec supportA photo or video codec that is accelerated in hardware can greatly accelerate the working speed of a processor and extend the battery life of notebooks or smartphones when playing videos. |
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| no iGPU | GPU | Qualcomm Adreno 642L |
| No | Codec h265 / HEVC (8 bit) | Decode |
| No | Codec h265 / HEVC (10 bit) | Decode |
| No | Codec h264 | Decode / Encode |
| No | Codec VP9 | Decode |
| No | Codec VP8 | Decode |
| No | Codec AV1 | No |
| No | Codec AVC | Decode |
| No | Codec VC-1 | Decode |
| No | Codec JPEG | Decode / Encode |
Memory & PCIeUp to 16 GB of memory in a maximum of 2 memory channels is supported by the Intel Core 2 Quad Q8400, while the Qualcomm Snapdragon 778G+ supports a maximum of 16 GB of memory with a maximum memory bandwidth of 25.6 GB/s enabled. |
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| Intel Core 2 Quad Q8400 | Characteristic | Qualcomm Snapdragon 778G+ |
| DDR3-1066, DDR2-800 | Memory | LPDDR5-6400 |
| 16 GB | Max. Memory | 16 GB |
| 2 (Dual Channel) | Memory channels | 2 (Dual Channel) |
| 17.1 GB/s | Max. Bandwidth | 25.6 GB/s |
| No | ECC | No |
| 4.00 MB | L2 Cache | -- |
| -- | L3 Cache | 2.00 MB |
| -- | PCIe version | -- |
| -- | PCIe lanes | -- |
| -- | PCIe Bandwidth | -- |
Thermal ManagementThe Intel Core 2 Quad Q8400 has a TDP of 95 W. The TDP of the Qualcomm Snapdragon 778G+ is --. System integrators use the TDP of the processor as a guide when dimensioning the cooling solution. |
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| Intel Core 2 Quad Q8400 | Characteristic | Qualcomm Snapdragon 778G+ |
| 95 W | TDP (PL1 / PBP) | -- |
| -- | TDP (PL2) | -- |
| -- | TDP up | -- |
| -- | TDP down | -- |
| -- | Tjunction max. | -- |
Technical detailsThe Intel Core 2 Quad Q8400 has 4.00 MB cache and is manufactured in 45 nm. The cache of Qualcomm Snapdragon 778G+ is at 2.00 MB. The processor is manufactured in 6 nm. |
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| Intel Core 2 Quad Q8400 | Characteristic | Qualcomm Snapdragon 778G+ |
| 45 nm | Technology | 6 nm |
| Monolithic | Chip design | Chiplet |
| x86-64 (64 bit) | Instruction set (ISA) | Armv8-A (64 bit) |
| MMX, SSE2, SSE3, SSE4.1 | ISA extensions | -- |
| LGA 775 | Socket | -- |
| VT-x, VT-d | Virtualization | None |
| No | AES-NI | No |
| Windows 10, Linux | Operating systems | Android |
| Q2/2009 | Release date | Q4/2021 |
| -- | Release price | -- |
| show more data | show more data | |
4C 4T @ 2.66 GHz buy now on Amazon and save!
8C 8T @ 2.50 GHz buy now on Amazon and save!
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Rate these processors
Average performance in benchmarks
⌀ Single core performance in 1 CPU benchmarks
⌀ Multi core performance in 1 CPU benchmarks
Geekbench 5, 64bit (Single-Core)
Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
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Intel Core 2 Quad Q8400
4C 4T @ 2.66 GHz |
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Qualcomm Snapdragon 778G+
8C 8T @ 2.50 GHz |
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Geekbench 5, 64bit (Multi-Core)
Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
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Intel Core 2 Quad Q8400
4C 4T @ 2.66 GHz |
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Qualcomm Snapdragon 778G+
8C 8T @ 2.50 GHz |
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Geekbench 6 (Single-Core)
Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The single-core benchmark only evaluates the performance of the fastest CPU core, the number of CPU cores in a processor is irrelevant here.
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Intel Core 2 Quad Q8400
4C 4T @ 2.66 GHz |
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Qualcomm Snapdragon 778G+
8C 8T @ 2.50 GHz |
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Geekbench 6 (Multi-Core)
Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The multi-core benchmark evaluates the performance of all of the processor's CPU cores. Virtual thread improvements such as AMD SMT or Intel's Hyper-Threading have a positive impact on the benchmark result.
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Intel Core 2 Quad Q8400
4C 4T @ 2.66 GHz |
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Qualcomm Snapdragon 778G+
8C 8T @ 2.50 GHz |
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AnTuTu 9 Benchmark
The AnTuTu 9 benchmark is very well suited to measuring the performance of a smartphone. AnTuTu 9 is quite heavy on 3D graphics and can now also use the "Metal" graphics interface. In AnTuTu, memory and UX (user experience) are also tested by simulating browser and app usage. AnTuTu version 9 can compare any ARM CPU running on Android or iOS. Devices may not be directly comparable when benchmarked on different operating systems.
In the AnTuTu 9 benchmark, the single-core performance of a processor is only slightly weighted. The rating is made up of the multi-core performance of the processor, the speed of the working memory, and the performance of the internal graphics.
In the AnTuTu 9 benchmark, the single-core performance of a processor is only slightly weighted. The rating is made up of the multi-core performance of the processor, the speed of the working memory, and the performance of the internal graphics.
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Intel Core 2 Quad Q8400
4C 4T @ 2.66 GHz |
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Qualcomm Snapdragon 778G+
8C 8T @ 2.50 GHz |
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Estimated results for PassMark CPU Mark
Some of the CPUs listed below have been benchmarked by CPU-monkey. However the majority of CPUs have not been tested and the results have been estimated by a CPU-monkey’s secret proprietary formula. As such they do not accurately reflect the actual Passmark CPU mark values and are not endorsed by PassMark Software Pty Ltd.
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Intel Core 2 Quad Q8400
4C 4T @ 2.66 GHz |
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Qualcomm Snapdragon 778G+
8C 8T @ 2.50 GHz |
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CPU-Z Benchmark 17 (Multi-Core)
The CPU-Z benchmark measures a processor's performance by measuring the time it takes the system to complete all benchmark calculations. The faster the benchmark is completed, the higher the score.
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Intel Core 2 Quad Q8400
4C 4T @ 2.66 GHz |
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Qualcomm Snapdragon 778G+
8C 8T @ 2.50 GHz |
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Performance for Artificial Intelligence (AI) and Machine Learning (ML)
Processors with the support of artificial intelligence (AI) and machine learning (ML) can process many calculations, especially audio, image and video processing, much faster than classic processors. The performance is given in the number (trillions) of arithmetic operations per second (TOPS).
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Intel Core 2 Quad Q8400
4C 4T @ 2.66 GHz |
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Qualcomm Snapdragon 778G+
8C 8T @ 2.50 GHz |
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Devices using this processor |
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| Intel Core 2 Quad Q8400 | Qualcomm Snapdragon 778G+ |
| Unknown | Unknown |
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